.ProgressBar {
  position: relative;
  .ProgressBar_inner {
    width: 100%;
    height: 4px;
    background: #545b6b;
    .progress {
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      background: #8e909c;
    }
    .btn {
      position: absolute;
      top: 50%;
      transform: translate(0, -50%);
      width: 10px;
      height: 10px;
      background: #fff;
      border-radius: 50%;
    }
  }
}
